A measurement of the magnetic field systematic correction to the muon anomalous magnetic moment associated with muon phase space in experiment BNL E821

Using a muon storage ring located at Brookhaven National Laboratory (BNL), the first year of a continuing four year effort to measure the anomalous magnetic moment of the muon to 0.35 ppm has been completed. The measurement hopes to provide a direct experimental determination of the single loop weak renormalization with 23 percent resolution, and will place more stringent constraints on extensions to the Standard Model. To measure the muon anomaly, polarized muons are injected into a magnetic storage ring and decay into positrons via the parity violating weak interaction. The spin precession rate of the muons in the ring is then determined by measuring energy oscillations of the decay positrons. The rate of oscillation is directly proportional to the magnetic anomaly of the muon. In an effort to measure experimental systematic errors associated with muon phase space in the magnetic storage ring, a system of four straw drift tube tracking chambers, called the traceback detector, was designed and built at the University of Illinois. The detector is responsible for indirectly measuring the muon distribution in the magnetic storage ring by tracking decay positrons backwards into the magnetic storage ring to the point of muon decay. The muon distribution measurement made from 24093 decay positrons during 1997 lead to a magnetic field systematic correction of +0.3093(117)(4613) ppm to the anomalous magnetic moment of the muon. This measurement is the framework of this doctoral thesis.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Physics

Year dc:date

2012

Author dc:creator

• Deninger, William James

Contributors dc:contributor

• Debevec, Paul T.

• muon
• traceback detector

Statement dc:rights

• ©1999 William James Deninger

Language dc:language

en

Identifier

4247373

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/30877